Refuse incinerator



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J. PRESQOTT REFUSE INCINERATOR Filed Sept 1'7, 1921 3 Sheets-Sheet mwww 51m, 2Q, @9255. waww J. PRE$COTT REFUSE INCINERATOR Filed Sep 17, 1921 3 Sheets-Sheet 2 Patented Jen. 2Q, 1925;

rarer JESSE PRESCOTT, OF WEBSTER, MASSACHUSETTS.

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Application filed September 17, 1821. Serial No. 501,34t4.

To all whom it may concern:

Be it known that I, JEssE PnEsoo'rT, a

, citizen. of the United States, residing at \Vebster, in. the county of Wprcester and State of Massachusetts, have invented new and useful Improvements in Refuse Incinerators,fof which the following is -a specification.

This invention relates to incinerators or crematories for burning garbage and refuse of all kinds.

The object of the invention is to provide an incinerator for use in apartment buildings, flats, hospitals, public institutions and residences, so constructed and arranged that the refuse may-be consumed after it has been delivered to the burner from various floors of the building in which the same is installed. I r

In carrying out my invention, I utilize a furnace having a combustion chamber to which fuel may be delivered for the consumption of the refuse, a smoke pipe. forcarrying away the products of combustion, and a chute adapted to deliver the refuse into the combustion chamber and extending upwardly past the several floor levels of the building with normally closed hoppers leading from each' floor level to the chute. The smoke flue and the refuse chute may be located in the usual built-in chimney with which such buildings are provi ed, so that the chute-constitutes as it were a fine of the chimney which is, cut off from and inde pendent of the smoke flue or fines of the same chimney. :lhe lower end of the chute, at its junction with the combustion chamber, is preferably provided with a normally closed valve, whic ,however, is so lightly balanced that it will be opened by the weight of the refuse falling thereon through the chute. This valve prevents the prodnets of combustion from entering the refuse chute but opens automatically to permit the delivery of the refuse into the combustion chamber.

On the accompanying drawings,- Figure 1. represents in section an incinerator embodym my invention and shows the same as insta led in a building.

Figure 2. represents a front elevation of a ortion' of the same.

igure 3- represents an enlarged vertical section through the delivery chute and shows the construction of the hoppers which arelocated at difi'erent floor levels.

Figure 4 represents an enlarged vertical section through the furnace or incinerator. Figure 5 represents a horizontal section on the line 5-5 of Figure 1.

' Figure 6 represents a section on the line 66 of Figure 4.

As illustrated on thedrawings ,tl1e incinerator proper may be built in the lower end of a chimney, which is indicated as a Whole at 10. This incinerator comprises a combustion chamber 11, the rear and side walls of which may be formed of fire brick'or other suitable material as indicated at 12. 1 The front of the incinerator consists of a large plate or casting 13 having a front wall 14 which may be flush with the face of the lower portion of thechimney, as shown in Figures 1, 2 and 4, and with an inner plate 15 which forms the front wall of the combustion chamber 11. 'These'two walls prpvide a relatively large insulating air space 16 at the front portion" of the incinerator.

Any suitable meansmay be utilized for receiving and supporting the refuse during its, consumption and for supplying fuel for insuring the combustion of such refuse.- As

indicated, however, I have illustrated the wall 15,as being rovided with a plate 17 supported by bracliets 18 on which ma be supported a basket or holder. for the re use. I-his plate 17 is shown. as being substantially rectangular so as to form a horizontal partition, and it is provided with a dropping grate section 19 controlled by a handle bar 20. The basket or holder 21 for the refuse is frusto-pyramidal' and rests on and is secured to the support 17. Across the corners of the combustion chamber there are plates 22 which extend from the'support 17 upwardly to a point below the top of the combustion chamber to afiord flues having openings extending into the combustion c amber substantially as illustrated and described in my Letters Patent No. 1,093,356, dated April 14, 1914, to which reference may. be had for a. more detailed description.

Below the basket an' ash pan 23 is supported on the base of the ash pit indicated ,at 24, and said ash. pan ma be withdrawn through an opening 25 in t e front wall of the incinerator, which opening is normally closed by a hinged door 26; The floor 0f .hinge with the usual dumping member 38 which directly intothe combustion openings 31, 32, formed in the front plates 14 and 15- and normally closed by the hinged doors 33,34. I

Provision is made for delivering refuse chamber' throu h a hopper 35,having a door 36 I thereto at 37 This door is provided closes the opening. into' the hopper when the. door is-opened to its greatest extent, it andthe door member 36 forming a receptacle to receive the garbage or other refuse when the door is'opened, .On the closure" of the door, the contents. ofthe receptacle thus formed-are, dumped into the incinerator basket 21. This' dumping door is provided 4 closed by a top plate or member 39, having for the use of the janitor or those on the ,fioor level where the incinerator proper. is

located. v, i

The upper }.portion of the combustion chamber of the incinerator is illustrated as an opening-40in itsforward orticn which atmos here. I I

" is bu lt of brick, I

communicates with'a smoke ue 41 extend- .ing upwardly through the chimney and terminating, at the 3 upper end thereof so as to deliver the: roducts of combustion to the ssujmin that the chimney ve' illustratedthis smoke flue'as being. provided-with the usual flue lining 42. In "the rear of the smoke flue I have provided an elbow 43, the lower :end of-which. is' ada ted to communicate c 'Withgthe' combustion'c amber and to deliver rearspassing there rough into the basket 21. This elbow me e formed integrally with the plate 39 or separately therefrom as-mostconvenient, its up er end terminatthrou h the'chimney' and terminates at the end t ereof, being open thereat to theing in afflange 44.: into w ich may project the lower end of-the lining 45 of a arbage .chute which is formed in the c imney..

This passageway or chute is indicated at 46 and extends verticallyv and upwardly atmosphere. With convenience the flue lining 45 may consist of sections'of cylindrical 13118 -or-. earthenware ipe. Hinged at 7 "601, 47 to a In 48 at the de ivery end of the elbow- 43, tom isa door or valve 49 whose-- f functidn is to close the lower end of the:

. elbowand thus close the lower'end oi the delivery chute for the refuse. A weighted arm 50 is connected to the door or valve 49 and is sufliciently large to hold the valve with an ornamental had to the garbage closed, and yet to permit it to open when any garbage or refuse ma erial impinges or rests thereon so as to permit it to be delivered into therefuse basket 21 of the in cinerator. i

While, of course, the chimney may be located at-the outer wall of a building, nevertheless in many cases it extends upwardly through the building with rooms or passageways on both sides thereof, and in Figure l .I have illustrated a'po'rtion of the building as having floors a b 0 with rooms or passageways on' both sides of the chimney 10, so that access maybe had to the chute from both sides of the chimney,

'At a convenient point above each floor level, normally-closed openings are provided through which garbage and other refuse may be delivered .into thechute 46. During the construction of the chimney there maybe placed between sections ofthechute 'lin ing 45 a joint or fitting 51 having upwardly inclined branches 52 into which may telescope the hoppers 53, as shown in Figure 3, the hoppers terminating at the front and rear wallsof thellchimney and extending 'ifdesired through the wall finish which is indicated at 54, "A dumping door 55'is pivoted at 56 to each ofthe hoppers, the door-proper 5? being provided with a handle'5 8, With convenience each hopper or laterally inclined portion of the chute may be provided flange 59 to rest against the wall finish.'

.In an incinerator such as described, in which the chute for the refuse is separate from the smoke flue but is, like such flue, located in the chimney, I secure-an economy of space, and at the same time, b .providing an automatic valve closing the ower end 7 of the chute, I prevent any possibility of products of combustion or odors from passing upwardly. through the chute and out into. the roomsor passageways of the build .ing in whichtheincinerator is. located. further advantage of this construction 1s that, when the doors leading into the chute are open-for the deposit of garbage or other refuse material into the chute, there is practically no "opportunityfor the products of combustion topass outwardly therethrough.v

"Again, it will be observed that the furnace or combustion chamber 'is located almost directly below'the chute, which extends directly therefrom upwardly in a vertical di- 'rection to the top of the chimney, so that there is a clear passageway, unobstructed save for the door '49, through which the refuse, material may be dumped directly into the combustion chamber. The whole construction is sim' 1e hasket or holder 21; an by removing the dumping door 36, one may have access tothe 'hinged valve 49 at the lower end of the chute.

access may be easily- What I claim is 1. A garba e and refuse incinerator for a building having a built-in chimney, comprising a combustion chamber having therein a receptacle for the material to beconsunied and a burner for a suitable fuel, and said chimney having a smoke flue therein leading directly from the combustion chamber for the products of combustion, and also having a separate refuse chute or flue therein open at its upper end to the atmosphere and at its lower end leading into the said combustion chamber.

2. A garbage and refuse incinerator comprising a chimney having two flues therein, one for carrying away products of combustion, and the other opening into the atmosphere and having lateral door-closed hoppers and servingas a chute for delivering refuse material into the combustion chamber, and a combustion chamber located ditherein, both having their upper ends opening into the atmosphere, one for carrying away productsof combustion, and the other having lateraldoor-closed hoppers and serving as a chute for delivering refuse material into the combustion chamber, a combustion chamber located directly below said flues and communicating therewith, and .an automatic valve normally closing the lower end of the refuse chute.

4. A garbage and refuse incinerator oomp'rising a brick or masonry chimney having therein separate vertical fiues opening into the atmosphere at their upper ends, one for carrying away products of combustion and the'other having lateral door-closed hoppers and serving as a chute-for refuse material, a combustion chamber located in the base ofthe chimney and having the lower ends of the said flues opening directly intoithe upper end thereof, a. basket or receptacle for the refuse material and a burner both located in said chamber, with the receptacle inposi tion to receive refuse material delivered from the chute, and a weighted normallyclosed valve at the lower end of said chute for preventing the passage of'the products of combustion through said chute.

In testimony whereof I have afiixed my signature.

JESSE PRESCOTT. 

